Full Details from Amazon.com : http://www.amazon.com/gp/product/B006TTQEEW?tag=onigi-20

Gigabyte GeForce GTX 550 Ti 1GB GDDR5 PCI Express 2.0 DVI-I/HDMI/D-Sub SLI Ready Graphics Card

Gigabyte Ultra Durable 2 Components - Ultra Cooling Low RDSon MOSFET Design - Low Power Loss Ferrite Core Chokes - Longer Life All-Solid Capacitor Design
Gigabyte Custom-Designed 100mm Fansink for maximum cooling efficiency and whisper silent operation
Gold plated HDMI for optimum signal transfer between connections
Features DVI-IHDMID-Sub VGA outputs with HDCP protection
Core Clock 900 MHz - Memory Clock 4100 MHz
Supports NVIDIA SLI3D VisionCUDAPhysX Technology